component
STM32F303C8T6
Public Made by Adomby adom
STMicroelectronics Microcontrollers (MCU/MPU/SOC), LQFP-48(7x7). Pinout checked against ST's open pin data, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads on click. Unloads only if this page sits in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads on click. Unloads only if this page sits in the background.
PCB Footprint
Open full view ↗Loads on click. Unloads only if this page sits in the background.
Datasheet
Open in new tab ↗Loads on click. Unloads only if this page sits in the background.
README
markdownSTM32F303C8T6
STMicroelectronics · Microcontrollers (MCU/MPU/SOC) · LQFP-48(7x7)
STM32F303C8T6 from STMicroelectronics, in a LQFP-48(7x7). Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model, then checked against ST open pin data); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | VBAT | power_in | Backup power supply for RTC, backup registers and wakeup logic, 1.65 to 3.6 V |
| 2 | PC13 | bidirectional | General-purpose I/O with RTC backup domain interface, alternate functions TIM1_CH1N and RTC features |
| 3 | PC14/OSC32_IN | bidirectional | 32 kHz oscillator input for RTC, alternate function OSC32_IN |
| 4 | PC15/OSC32_OUT | bidirectional | 32 kHz oscillator output for RTC, alternate function OSC32_OUT |
| 5 | PF0/OSC_IN | bidirectional | 5V-tolerant I/O with high-speed external oscillator input, alternate functions TIM1_CH3N and OSC_IN |
| 6 | PF1/OSC_OUT | bidirectional | 5V-tolerant I/O with high-speed external oscillator output capability, alternate function OSC_OUT |
| 7 | NRST | bidirectional | Device reset input with embedded weak pull-up resistor, active low for internal and external reset |
| 8 | VSSA/VREF- | power_in | Analog ground and negative reference voltage for ADC and comparators |
| 9 | VDDA/VREF+ | power_in | Analog power supply and positive reference voltage for ADC, DAC, and comparators, 2.0 to 3.6 V |
| 10 | PA0 | bidirectional | 3.3V-tolerant analog I/O with ADC1_IN1 input, timer, touch sensing and USART features |
| 11 | PA1 | bidirectional | 3.3V-tolerant analog I/O with ADC1_IN2 input, timer and USART features, RTC reference input |
| 12 | PA2 | bidirectional | 3.3V-tolerant analog I/O with ADC1_IN3 input, timer, comparator and USART functions |
| 13 | PA3 | bidirectional | 3.3V-tolerant analog I/O with ADC1_IN4 input, timer and USART receive capability |
| 14 | PA4 | bidirectional | 3.3V-tolerant analog I/O with ADC2_IN1 and DAC1_OUT1, SPI and touch sensing functions |
| 15 | PA5 | bidirectional | 3.3V-tolerant analog I/O with ADC2_IN2 and DAC1_OUT2, SPI and operational amplifier input |
| 16 | PA6 | bidirectional | 3.3V-tolerant analog I/O with ADC2_IN3 and DAC2_OUT1, SPI, timer and operational amplifier output |
| 17 | PA7 | bidirectional | 3.3V-tolerant analog I/O with ADC2_IN4 and operational amplifier input, SPI and timer functions |
| 18 | PB0 | bidirectional | 3.3V-tolerant analog I/O with ADC1_IN11, comparator and operational amplifier inputs, timer functions |
| 19 | PB1 | bidirectional | 3.3V-tolerant analog I/O with ADC1_IN12, comparator output, and timer channel capabilities |
| 20 | PB2 | bidirectional | 3.3V-tolerant analog I/O with ADC2_IN12 and comparator input, touch sensing capability |
| 21 | PB10 | bidirectional | 3.3V TTL I/O with timer, touch sensing synchronization and USART transmission functions |
| 22 | PB11 | bidirectional | 3.3V-tolerant analog I/O with ADC2_IN13 and comparator input, touch sensing and USART functions |
| 23 | VSS | power_in | Digital ground reference for microcontroller power supply |
| 24 | VDD | power_in | Digital power supply, 2.0 to 3.6 V for core, SRAM and Flash memory |
| 25 | PB12 | bidirectional | 3.3V-tolerant analog I/O with ADC2_IN13, timer and USART features, touch sensing capability |
| 26 | PB13 | bidirectional | 3.3V-tolerant analog I/O with ADC1_IN13, timer and USART functions, touch sensing capability |
| 27 | PB14 | bidirectional | 3.3V-tolerant analog I/O with ADC2_IN14 and operational amplifier input, timer and USART functions |
| 28 | PB15 | bidirectional | 3.3V-tolerant analog I/O with ADC2_IN15, comparator input and RTC reference, timer capabilities |
| 29 | PA8 | bidirectional | 5V-tolerant I/O with master clock output and timer functionality for audio/event synchronization |
| 30 | PA9 | bidirectional | 5V-tolerant I/O with timer, USART transmission and touch sensing group 4 input capability |
| 31 | PA10 | bidirectional | 5V-tolerant I/O with timer, USART reception, comparator output and touch sensing capability |
| 32 | PA11 | bidirectional | 5V-tolerant I/O with CAN receive, timer and USART handshake signals for communication |
| 33 | PA12 | bidirectional | 5V-tolerant I/O with CAN transmit, timer, comparator output and USART flow control |
| 34 | PA13 | bidirectional | 5V-tolerant JTAG/SWD debug pin with infrared output, timer and USART capabilities |
| 35 | VSS | power_in | Digital ground reference for microcontroller power supply |
| 36 | VDD | power_in | Digital power supply, 2.0 to 3.6 V for core, SRAM and Flash memory |
| 37 | PA14 | bidirectional | 5V-tolerant FM+ I2C clock pin with JTAG functionality, timer and USART features |
| 38 | PA15 | bidirectional | 5V-tolerant FM+ I2C data pin with JTAG input, SPI and USART capabilities, timer support |
| 39 | PB3 | bidirectional | 5V-tolerant I/O with JTAG output, SPI clock, timer and USART transmission functions |
| 40 | PB4 | bidirectional | 5V-tolerant I/O with JTAG reset, SPI data input, timer and USART reception capability |
| 41 | PB5 | bidirectional | 5V-tolerant I/O with I2C bus alert, SPI data output, timer and USART clock functionality |
| 42 | PB6 | bidirectional | 5V-tolerant FM+ I2C clock with timer and USART transmission for communication protocols |
| 43 | PB7 | bidirectional | 5V-tolerant FM+ I2C data pin with timer channel 4 and USART reception capability |
| 44 | BOOT0 | input | Boot mode selection input, dedicated pin that determines boot source at reset |
| 45 | PB8 | bidirectional | 5V-tolerant FM+ I2C clock with CAN receive, timer and USART functions for communication |
| 46 | PB9 | bidirectional | 5V-tolerant FM+ I2C data pin with CAN transmit, infrared output and comparator capability |
| 47 | VSS | power_in | Digital ground reference for microcontroller power supply |
| 48 | VDD | power_in | Digital power supply, 2.0 to 3.6 V for core, SRAM and Flash memory |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | LQFP-48(7x7) |
| Category | Embedded Processors & Controllers |
| Pins | 48 |
CAD (KiCad official)
- Symbol:
STM32F303C8T6 - Footprint:
Package_QFP:LQFP-48_7x7mm_P0.5mm - 3D model: LQFP-48(7x7) (KiCad packages3D, STEP)
- 3D model files:
stm32f303c8t6-etched.step/stm32f303c8t6-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);stm32f303c8t6.step/stm32f303c8t6.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: STMicroelectronics datasheet (115 pp, sha256
dc1490452e89dccc, retrieved 2026-09-27, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-4-6(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).